{"id":3975154,"url":"https://alion.io/job/tjx-senior-mainframe-developer-modernisation","title":"Senior Mainframe Developer (Modernisation)","company":{"id":1758993,"name":"TJX","domain":"tjx.com","url":"https://alion.io/company/tjx-com","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Hyderabad, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"CI/CD","optional":true},{"name":"COBOL","optional":true},{"name":"Copilot","optional":true},{"name":"Db2","optional":true},{"name":"Git","optional":true},{"name":"JCL","optional":true}],"status":"live","first_seen_at":"2026-11-09T17:35:30Z","employer_posted_date":null,"last_verified_at":"2026-11-09T17:35:30Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Job Description:\n\nWe are looking for a Senior Engineer with strong hands-on Mainframe development experience to join our engineering team.\n\nThis role will primarily focus on Mainframe application development, enhancement and support, while also contributing to the modernisation of existing applications and the development of future solutions using modern engineering technologies and practices.\n\nThe ideal candidate will have strong Mainframe development expertise, experience working with complex custom-built applications, and the ability to operate across both existing Mainframe solutions and modern technology platforms. Experience with, or a willingness to develop capabilities in, C#, .NET, REST APIs, SQL and Azure is highly desirable.\n\nKey Responsibilities:\nDesign, develop, enhance and support custom Mainframe applications.\nPerform hands-on development using COBOL, JCL, DB2 and batch-processing technologies.\nAnalyse existing code, business logic, data flows and integrations to deliver enhancements and resolve complex technical issues.\nTake end-to-end ownership of application development, maintenance, troubleshooting and production stability.\nPerform root-cause analysis and implement sustainable solutions for application and production issues.\nWork across existing Mainframe applications and modernisation initiatives.\nSupport integration between Mainframe applications and modern enterprise platforms.\nContribute to modern application development using C#, .NET, REST APIs, SQL and cloud technologies.\nHelp translate existing Mainframe functionality and business logic into modern solution designs as applications evolve.\nCollaborate with engineering, product and business teams to deliver reliable, scalable and maintainable solutions.\nContinuously build technical and functional knowledge across both Mainframe and modern technologies.\n\nRequired Skills & Experience:\nStrong hands-on experience in Mainframe application development.\nProven experience in custom application development and enhancement, beyond production support and maintenance.\nStrong development experience with COBOL, JCL, DB2 and batch processing.\nExperience developing and maintaining complex, business-critical enterprise applications.\nStrong understanding of application architecture, business logic, integrations and data flows.\nAbility to analyse and modify complex business logic within mature applications.\nStrong debugging, troubleshooting and root-cause analysis capabilities.\nExperience supporting business-critical applications in production environments.\nStrong problem-solving skills, ownership mindset and learning agility.\nAbility to work effectively across legacy and modern technology environments.\nStrong communication and collaboration skills.\n\nPreferred Experience:\nExperience with Mainframe modernisation or legacy transformation initiatives.\nExperience integrating Mainframe applications with modern platforms, services and APIs.\nExperience translating Mainframe functionality and business logic into modern application designs.\nExperience with C# and .NET.\nExperience with REST APIs and enterprise integration.\nKnowledge of SQL and modern data-access technologies.\nExposure to modern frontend development technologies.\nExperience with Azure or other cloud platforms.\nFamiliarity with Git, automated testing, CI/CD and DevSecOps practices.\nExperience using GitHub Copilot or other AI-assisted software development tools.\nExperience in warehouse, distribution, fulfilment or supply-chain applications is advantageous.\n\nWhat We're Looking For:\n\nWe are looking for a strong Mainframe engineer with a modern engineering mindset. You should bring strong Mainframe development expertise while having the curiosity, learning agility and engineering mindset to work across both existing and modern technologies.\nSkills\nCOBOL, JCL, Mainframes","description_format":"text","description_chars":3847,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Retail & Shop Systems","Apparel & Fashion Brands"],"lifecycle":[{"event":"open","at":"2026-11-09T17:35:30Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":29,"reasons":["seen:0","win:early"],"computed_at":"2026-11-09T18:31:30Z"},"pay":null,"html_url":"https://alion.io/job/tjx-senior-mainframe-developer-modernisation","json_url":"https://alion.io/job/tjx-senior-mainframe-developer-modernisation.json","meta":{"generated_at":"2026-11-09T18:31:30Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":3305,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-10T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1758993},"rest":"https://alion.io/mcp/rest/get_company?id=1758993"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftjx-senior-mainframe-developer-modernisation"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftjx-senior-mainframe-developer-modernisation"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftjx-senior-mainframe-developer-modernisation"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/tjx-senior-mainframe-developer-modernisation\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftjx-senior-mainframe-developer-modernisation"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3975154}},{"tool":"search_jobs","arguments":{"company":"tjx.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3975154},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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